دورية أكاديمية
Exercise-induced modulation of myokine irisin on muscle-bone unit in the rat model of post-traumatic osteoarthritis
| العنوان: | Exercise-induced modulation of myokine irisin on muscle-bone unit in the rat model of post-traumatic osteoarthritis |
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| المؤلفون: | Xingru Shang, Xiaoxia Hao, Wenjie Hou, Jiawei Liu, Ruimin Chi, Xiaofeng Deng, Chunran Pan, Tao Xu |
| المصدر: | Journal of Orthopaedic Surgery and Research, Vol 19, Iss 1, Pp 1-12 (2024) |
| بيانات النشر: | BMC, 2024. |
| سنة النشر: | 2024 |
| المجموعة: | LCC:Orthopedic surgery LCC:Diseases of the musculoskeletal system |
| مصطلحات موضوعية: | Post-traumatic osteoarthritis, Treadmill training, Muscle–bone unit, Irisin, Orthopedic surgery, RD701-811, Diseases of the musculoskeletal system, RC925-935 |
| الوصف: | Abstract Background and aim Post-traumatic osteoarthritis (PTOA) is a subtype of osteoarthritis (OA). Exercise may produce and release the myokine irisin through muscle fiber contraction. However, the effect of exercise-promoted irisin production on the internal interactions of the muscle–bone unit in PTOA studies remains unclear. Methods Eighteen 8-week-old Sprague–Dawley (SD) rats were randomly divided into three groups: Sham/sedentary (Sham/Sed), PTOA/sedentary (PTOA/Sed), and PTOA/treadmill-walking (PTOA/TW). The PTOA model was established by transection of anterior cruciate ligament (ACLT) and destabilization of medial meniscus (DMM). After 4 weeks of modeling, the PTOA/TW group underwent treadmill exercise (15 m/min, 30 min/d, 5 d/ week, 8 weeks), and the other two groups were free to move in the cage. Evaluation and correlation analysis of muscle, cartilage, subchondral bone and serological indexes were performed after euthanasia. Results Eight weeks of treadmill exercise effectively alleviated the trauma-induced OA phenotype, thereby maintaining cartilage and subchondral bone integrity in PTOA, and reducing quadriceps atrophy and myofibril degradation. Exercise reversed the down-regulated expression of peroxisome proliferator-activated receptor-gamma coactivator-1α (PGC-1α) and fibronectin type III structural domain protein 5 (FNDC5) in muscle tissue of PTOA rats, and increased the blood irisin level, and the irisin level was positively correlated with the expression of PGC-1α and FNDC5. In addition, correlation analysis showed that irisin metabolism level was strongly negatively correlated with Osteoarthritis Research Society International (OARSI) and subchondral bone loss, indicating that irisin may be involved in cartilage biology and PTOA-related changes in cartilage and subchondral bone. Moreover, the metabolic level of irisin was strongly negatively correlated with muscle fiber cross-sectional area (CSA), Atrogin-1 and muscle ring-finger protein-1(MuRF-1) expression, suggesting that irisin may alleviate muscle atrophy through autocrine action. Conclusion Treadmill exercise can alleviate the atrophy and degeneration of muscle fibers in PTOA rats, reduce the degradation of muscle fibrin, promote the expression of serum irisin, and alleviate the degeneration of articular cartilage and subchondral bone loss in PTOA rats. These results indicate that treadmill exercise can affect the process of PTOA by promoting the expression of myokine irisin in rat muscle–bone unit. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1749-799X |
| العلاقة: | https://doaj.org/toc/1749-799XTest |
| DOI: | 10.1186/s13018-024-04532-2 |
| الوصول الحر: | https://doaj.org/article/b07272e44ce64cfd95cb35b4c225a55bTest |
| رقم الانضمام: | edsdoj.b07272e44ce64cfd95cb35b4c225a55b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 1749799X |
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| DOI: | 10.1186/s13018-024-04532-2 |